Comment 232 for bug 1140716

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Martin D. Weinberg (martin-weinberg-5) wrote : Re: [regression] 3.5.0-26-generic and 3.2.0-39-generic GPU hangs on Sandybridge

Thanks for the hint. I tried the 3.8.13 kernel on x86_64 with a Lenovo X220.

I can still torture out hangchecks with 3.8.13-03081302-generic #201306071405 SMP Fri Jun 7 18:06:32 UTC 2013 x86_64
by running three glxgears and youtube at HD resolution, e.g.:

[ 787.335798] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung
[ 804.309281] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung
[ 804.317252] [drm:__gen6_gt_force_wake_get] *ERROR* Timed out waiting for forcewake old ack to clear.
[ 878.117786] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung
[ 890.102590] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung

However, the drm seems to recover on its own for the most part, like the 3.10.x kernel. So that is a definite improvement.